================== W A R N I N G ! ! ==================== Li-Ion batteries are very dangerous if not handled properly. Use them only with proper protection circuits and chargers. DO NOT OVER CHARGE / BURN / OPEN Li-Ion Bats Using any of the informations available on esp8266-projects.com is on your Read more…
First, The Question: What is a PIR sensor? PIR Sensor with mounted Fresnel Lens A PIR module is basically made of a pyroelectric sensor (see it below as the round metal can with a rectangular crystal in the center), which can detect levels of infrared radiation. Everything emits some low Read more…
____________________________________________________________ WARNING!! You will play with LIVE MAINS!! Deadly zone!! If you don’t have any experience and are not qualified for working with MAINS power I will not ecourage you to play arround! ____________________________________________________________ The story behind:Somebody was asking few days ago on ESP8266.com forum for the easiest way to Read more…